feat: Add checks workflow.

Author: ceyhunsen

.github/workflows/checks.yml

@@ -0,0 +1,73 @@
+name: Code Checks
+
+on: [push]
+
+env:
+  CARGO_TERM_COLOR: always
+  CARGOFLAGS: --workspace --all-targets --all-features
+
+jobs:
+  formatting:
+    name: Check formatting
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/install-risc0
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Run Cargo fmt
+        run: cargo fmt --check
+
+  linting:
+    name: Check linting
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install cargo-clippy
+        run: rustup component add --toolchain 1.85-x86_64-unknown-linux-gnu clippy
+      - name: Run Cargo clippy
+        run: cargo clippy --no-deps --all-targets $AUTOMATION_ARGS -- -Dwarnings
+
+  udeps:
+    name: Check unused dependencies
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/install-risc0
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly-2025-03-09
+          override: true
+
+      - name: Run cargo-udeps
+        env:
+          RUSTFLAGS: -A warnings
+        uses: aig787/cargo-udeps-action@v1
+        with:
+          version: "latest"
+          args: "--workspace --all-features --all-targets ${{ env.AUTOMATION_ARGS }}"
+
+  codespell:
+    name: Check spelling
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.x"
+
+      - name: Install codespell
+        run: pip install codespell
+
+      - name: Run codespell
+        run: |
+          codespell --skip="*.lock,./target" -I="codespell_ignore.txt"